Add Read Aloud functionality to Proofs

Description - Add an option to have text in a proof read aloud wherever text is selectable and not build into an image.

Why is this feature important to you - There is no option to have text within a proof read aloud like you can in a PDF. This is vital when proofreading something as it helps to hear any issues instead of relying on visually catching them. 

How would you like the feature to work - Have an icon to select to have text read aloud, ideally with some better functionality than even a PDF to have it work similar to Word where it starts reading from where your cursor is located with a start/pause button, and simple settings to adjust speed and voices. 

Current Behaviour - Not possible, and no browser extensions or Windows narrator seem capable of doing it because of how a proof is integrated in the browser where you can't select text. Having the option to highlight text outside of a comment would be helpful in general since we currently have to download the PDF to select the text and transfer it to Word to run a simple spell check.